Home / 12,178,257.21-16,805,993.58-7,283,478.54

Finding the Fourth Proportional to 12,178,257.21, 16,805,993.58 and 7,283,478.54

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Solution

The fourth proportional to 12,178,257.21, 16,805,993.58 and 7,283,478.54 is: 10,051,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,257.21 : 16,805,993.58 = 7,283,478.54 : x
  2. Step 2: Convert to fraction form
    12,178,257.21/16,805,993.58 = 7,283,478.54/x
  3. Step 3: Cross multiply
    12,178,257.21x = 16,805,993.58 × 7,283,478.54
  4. Step 4: Simplify right side
    12,178,257.21x = 122,406,093,583,307.77
  5. Step 5: Solve for x
    x = 122,406,093,583,307.77/12,178,257.21
  6. Step 6: Final answer
    x = 10,051,199.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.